91 lines
2.8 KiB
Solidity
91 lines
2.8 KiB
Solidity
// SPDX-License-Identifier: MIT
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pragma solidity ^0.8.19;
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/**
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* @title CSVHelper
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* @dev Library for managing CSV data in Solidity, including converting values to strings and writing CSV data.
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*/
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library CSVHelper {
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/**
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* @notice Creates a standard CSV header for liquidity position data.
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* @return The CSV header as a string.
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*/
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function createPositionsHeader() internal pure returns (string memory) {
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return
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"precedingAction, currentTick, floorTickLower, floorTickUpper, floorEth, floorHarb, anchorTickLower, anchorTickUpper, anchorEth, anchorHarb, discoveryTickLower, discoveryTickUpper, discoveryEth, discoveryHarb";
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}
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function createTimeSeriesHeader() internal pure returns (string memory) {
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return "time, price, harbTotalSupply, supplyChange, stakeOutstandingShares, avgTaxRate, sentiment, taxCollected";
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}
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/**
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* @notice Appends new CSV data to the existing CSV string.
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* @param csv The current CSV string.
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* @param newRow The new row to append.
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* @return The updated CSV string.
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*/
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function appendRow(string memory csv, string memory newRow) internal pure returns (string memory) {
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return string(abi.encodePacked(csv, "\n", newRow));
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}
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/**
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* @notice Converts a `uint256` to a string.
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* @param _i The integer to convert.
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* @return The string representation of the integer.
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*/
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function uintToStr(uint256 _i) internal pure returns (string memory) {
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if (_i == 0) {
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return "0";
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}
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uint256 j = _i;
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uint256 len;
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while (j != 0) {
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len++;
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j /= 10;
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}
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bytes memory bstr = new bytes(len);
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uint256 k = len;
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while (_i != 0) {
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k = k - 1;
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uint8 temp = (48 + uint8(_i - _i / 10 * 10));
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bstr[k] = bytes1(temp);
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_i /= 10;
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}
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return string(bstr);
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}
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/**
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* @notice Converts an `int256` to a string.
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* @param _i The integer to convert.
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* @return The string representation of the integer.
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*/
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function intToStr(int256 _i) internal pure returns (string memory) {
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if (_i == 0) {
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return "0";
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}
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bool negative = _i < 0;
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uint256 absValue = uint256(negative ? -_i : _i);
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uint256 len;
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uint256 j = absValue;
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while (j != 0) {
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len++;
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j /= 10;
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}
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if (negative) {
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len++; // Increase length for the minus sign.
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}
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bytes memory bstr = new bytes(len);
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uint256 k = len;
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while (absValue != 0) {
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k = k - 1;
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uint8 temp = (48 + uint8(absValue - absValue / 10 * 10));
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bstr[k] = bytes1(temp);
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absValue /= 10;
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}
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if (negative) {
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bstr[0] = "-";
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}
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return string(bstr);
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}
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}
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